New comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/29605#issuecomment-805754124

Comment:
> Edit: But I can move it to README.voidlinux if you want. Is this shown after an installation?

It isn't. But INSTALL.msg should be used for things like "this openssh update requires a service restart", which other install.msg in the same transaction will make it harder to see. So putting things in a dedicated file helps.